sigma.parsers.json("@{ChallengeGraphDataR $ challengeName challenge}", {
    container: 'graph-container',
    settings: {
      defaultNodeColor: '#ec5148'
    }
  });

  var columnDefs = $.fn.dataTable.getColumnDefs(#{delta}, #{higherTheBetterArray});

  $(document).ready(function() {
     $("table").DataTable({
       'pageLength': 50,
       'columnDefs': columnDefs,
       'dom': 'Bfrtlip',
       'buttons': [
            'copy',
            'csv',
            'excel'
        ]
       })
  });